# -*- coding: utf-8 -*-
"""
购物车数据访问层

负责购物车、库存、地址等相关的数据库操作
"""
from typing import List, Dict, Any, Optional
from datetime import datetime
from app.repositories.base_repository import BaseRepository


class CartRepository(BaseRepository):
    """购物车数据访问类"""
    
    def __init__(self):
        super().__init__()
    
    def add_to_cart(self, user_id: str, goods_id: str, spec_id: str, quantity: int, price: float) -> int:
        """添加商品到购物车"""
        # 实现购物车添加逻辑
        return 1  # 返回cart_id
    
    def get_cart_items(self, user_id: str, selected_only: bool = False) -> List[Dict]:
        """获取购物车商品列表"""
        return []
    
    def get_cart_summary(self, user_id: str) -> Dict:
        """获取购物车汇总信息"""
        return {"total_count": 0, "total_price": 0}
    
    def update_cart_item(self, cart_id: str, user_id: str, quantity: Optional[int] = None, is_selected: Optional[bool] = None) -> bool:
        """更新购物车项"""
        return True
    
    def remove_from_cart(self, cart_id: str, user_id: str) -> bool:
        """从购物车移除商品"""
        return True
    
    def remove_multiple_from_cart(self, cart_ids: List[str], user_id: str) -> bool:
        """批量删除购物车商品"""
        return True
    
    def clear_cart(self, user_id: str, selected_only: bool = False) -> bool:
        """清空购物车"""
        return True


class StockRepository(BaseRepository):
    """库存数据访问类"""
    
    def __init__(self):
        super().__init__()
    
    def check_stock_available(self, goods_id: str, spec_id: str, quantity: int) -> bool:
        """检查库存是否充足"""
        return True  # 简化实现
    
    def get_stock(self, goods_id: str, spec_id: str) -> Optional[Dict]:
        """获取库存信息"""
        return {"available_stock": 999, "total_stock": 1000, "frozen_stock": 1}
    
    def freeze_stock(self, goods_id: str, spec_id: str, quantity: int) -> bool:
        """冻结库存"""
        return True
    
    def release_stock(self, goods_id: str, spec_id: str, quantity: int) -> bool:
        """释放库存"""
        return True
    
    def confirm_stock_usage(self, goods_id: str, spec_id: str, quantity: int) -> bool:
        """确认库存使用"""
        return True


class AddressRepository(BaseRepository):
    """收货地址数据访问类"""
    
    def __init__(self):
        super().__init__()
    
    def get_user_addresses(self, user_id: str) -> List[Dict]:
        """获取用户地址列表"""
        return []
    
    def get_default_address(self, user_id: str) -> Optional[Dict]:
        """获取默认地址"""
        return None
    
    def create_address(self, address_data: Dict) -> int:
        """创建地址"""
        return 1
    
    def update_address(self, address_id: str, user_id: str, address_data: Dict) -> bool:
        """更新地址"""
        return True
    
    def delete_address(self, address_id: str, user_id: str) -> bool:
        """删除地址"""
        return True
    
    def set_default_address(self, address_id: str, user_id: str) -> bool:
        """设置默认地址"""
        return True
    
    def get_address_by_id(self, address_id: str) -> Optional[Dict]:
        """根据ID获取地址"""
        return None


class OrderItemRepository(BaseRepository):
    """订单商品明细数据访问类"""
    
    def __init__(self):
        super().__init__()
    
    def create_order_items(self, order_id: str, items: List[Dict]) -> bool:
        """创建订单项"""
        return True
    
    def get_order_items(self, order_id: str) -> List[Dict]:
        """获取订单项"""
        return []
    
    def get_order_items_by_trade_no(self, trade_no: str) -> List[Dict]:
        """根据交易号获取订单项"""
        return [] 
    def execute_custom_query(self, query: str, params: tuple = None):
        """执行自定义查询"""
        try:
            import mysql.connector
            connection = mysql.connector.connect(**self.db_config)
            cursor = connection.cursor(dictionary=True)
            
            if params:
                cursor.execute(query, params)
            else:
                cursor.execute(query)
            
            result = cursor.fetchall()
            cursor.close()
            connection.close()
            
            return result if result else []
        except Exception as e:
            print(f"查询错误: {e}")
            return []
    
    def execute_query(self, query: str, params: tuple = None):
        """执行查询（别名）"""
        return self.execute_custom_query(query, params)
    
    def count_query(self, query: str, params: tuple = None):
        """计数查询"""
        try:
            import mysql.connector
            connection = mysql.connector.connect(**self.db_config)
            cursor = connection.cursor()
            
            if params:
                cursor.execute(query, params)
            else:
                cursor.execute(query)
            
            result = cursor.fetchone()
            cursor.close()
            connection.close()
            
            return result[0] if result else 0
        except Exception as e:
            print(f"计数错误: {e}")
            return 0

    def execute_custom_query(self, query: str, params: tuple = None, *args, **kwargs):
        """执行自定义查询"""
        try:
            import mysql.connector
            connection = mysql.connector.connect(**self.db_config)
            cursor = connection.cursor(dictionary=True)
            
            if params:
                cursor.execute(query, params)
            else:
                cursor.execute(query)
            
            result = cursor.fetchall()
            cursor.close()
            connection.close()
            
            return result if result else []
        except Exception as e:
            print(f"查询错误: {e}")
            return []
    
    def execute_query(self, query: str, params: tuple = None, *args, **kwargs):
        """执行查询"""
        return self.execute_custom_query(query, params, *args, **kwargs)
    
    def count_query(self, query: str, params: tuple = None, *args, **kwargs):
        """计数查询"""
        try:
            import mysql.connector
            connection = mysql.connector.connect(**self.db_config)
            cursor = connection.cursor()
            
            if params:
                cursor.execute(query, params)
            else:
                cursor.execute(query)
            
            result = cursor.fetchone()
            cursor.close()
            connection.close()
            
            return result[0] if result else 0
        except Exception as e:
            print(f"计数错误: {e}")
            return 0
